Bobbin-stripping machine.



R. WALWORTH.

BOBBIN STRIPPING MACHINE. APPLICATION FILED DEG. a, 1908.

Patented Dec. 9, 1913.

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@LCM ji /04% 1-5 5 D WALWORTH, OF 'WALTHAM, MASSACHUSETTS.

BQBBIN-STBIPPING MQCHINE.

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To all whom itmcy concern:

Be it known that LRIoHARD WALWORTH, a citizen of the United States, residing at Waltham, in. the county of Middlesex and State of Massachusetts, have invented certain new and useful Improvements in Bobbin-Stripping Machines, of which the following is a specification, reference being had therein to the accompanying drawing.

This present invention relates to improvements in bobbin stripping machines, the object of my invention being the provision of a machine of this class that. may be operated by either one or two operators, and which will remove the thread or roving remaining on the bobbins from the bobbins as they .are fed automatically from one end of the machine to the other.

To more clearly bring out the features of my invention and to clearly illustrate the construction and arrangement thereof, at-

band-pulley a tention is invited to the accompanying drawings, in which Figure 1 is a vertical cross section through the machine. Fig. 2 is a top plan view of the complete machine, and Fig. 3 is a rear elevationgo'f the machine.

Referring tothe drawings :The machine is provided with a large roller a, which is covered with leather, such covering constituting a friction surface. The said roller is operated through the medium of a driving band a, Fig. 2, passing around the Fig. 3, on the shaft of the said roller. Mounted removably in the frame of the machine and so as to contact with and receive motion from the roller 0., are the two rollers b and c. The inclined strip 0?, is what I term the front bobbin guide. It extends lengthwise of the roller a at a suitable distance from the roller 0 to produce abobbin-receiving pocket, in which bobbins y are shown in Figs. 1 and 2. The said bobbins are of the well known construction of roving bobbins; namely, they have a cylindrical barrel and an enlarged base portion. In the bobbin-pocket the bobbins lie in the angle formed by the periphery of the roller a and the inclined face of the bobbin-guide cl. See Fig. 1. In consequence of the enlargement of the base a bobbin lies in the bobbin-pocket against the bobbin guide with its own axis approaching nearer the roller axis at the small end of the bobbin and also inclined downward i. 0., transversely with relation to the roller axis,

Specification of Letters Patent.

Application filed December 8, 1908. Serial No. 466,553.

"Patented ta. 9,1913.

as will be apparent from Fig. 1. Consequently the rotation of the roller a acts in virtue of a well known principle that is varlously utilized in the arts to produce travel of the bobbin endwise along the roller 9 as'an incident to rotating the bobbin upon its own axis. The bobbins j-travel large end foremost along the roller a toward the right handend of Fig. 2. At this end of the machine an opening is formed in the end frame in line with the bobbin-pocket and through such opening the leading bobbin passes into a trough g attached to the exterior of the end frame, the said bobbin being pushed by the next succeeding bobbin from the said trough into a basket or other convenient receptacle placed below the trough. The bobbin-guide d is shown in Fig. 2 longitudinally inclined with relation to the axis of the roller at, its right hand end being farther from the said axis than its left hand end. This lowers the correspondin end, i. 6., base, of each bobbin j,

and there y modifies the angle or inclination of the bobbin-axis with respect to a plane containin the roller-axis and intersected by the b0 bin-axis, and consequently modifies the angle or inclination of the plane of. rotation of a peripheral point on abobbin with respect to the plane ofrotation of a-peripheral point on the roller (1. The inclination of the bobbin-guide governs the rate of endwise travel of the bobbins j, j.

The rollers b and c are placed sufliciently far apart around the periphery of the roller a to form a second bobbin-receiving pocket in which roving bobbins are shown in Figs. 1 and 2. In this second bobbin-pocket the bobbins y" rest upon and against the peripheries of the rollers a and b in an inclined position that is represented in the said figures, the direction of the inclination being the reverse of that of bobbins and therefore such with relation to the axis of the roller a that the result thereof is to feed the bobbins small end foremost from right to left in Fig. 2 and out through an opening in the end frame at the left hand end of the machine into a trough f from which they discharge into a basket or other receptacle. Thus it will be seen that either one or two operators may place roving bobbins into the several places provided therefor, and that they place said bobbins in opposite sides of the machine. In the frame of the machine, I mount the upper brush cleaner h and the lower brush cleaner 2', the upper brush cleaner being below the rear guard or rail k.

From the foregoing description, it will be seen that as the bobbins are placed in the several places therefor the frictional surface of the roller a, will pick the loose end of the thread'or roving from a bobbin, and carry the same under and past the rollers c and b in the case of a thread or roving from a bobbin i, or the roller Z) in the case of a thread from a bobbin j, and that in the former case the rollers 0 and b and in the latter case the roller 12 will cooperate with the roller (1 in drawing the thread or roving forward and unwinding it from the bobbin, the thread or roving is being discharged into a receptacle m in the lower part of the machine. The threads or rovings are prevented from continuing to adhere to the rollers a and b and winding upon the same by means of the clearer brushes h, z.

What I claim as new is 1. In a bobbin stripping machine, the combination of a frame, a main roller mounted therein, a roller in contact with the main roller, and adapted to cooperate therewith in guiding and feeding longitudinally of the said rollers one or more bobbins applied thereto, the action of the two rollers tending to grip thethread or roving carried by a bobbin and unwind the same from the bobbin and feed the latter to one end of the rollers.

2. In a bobbin stripping machine, the combination of a frame, a main roller having a frictionsurface, a smaller roller cooperating with the main roller, said rollers adapted to traverse longitudinally a bobbin to be stripped and acting to strip the thread or roving from the bobbin during the passage of the latter along the rollers, and means for clearing the thread or roving from the said rollers.

3. A bobbin stripper, comprising a frame, a series of longitudinal stripper rolls having operative contact with each other and adapted to receive and traverse longitudinally a bobbin, said rolls by their rotation acting to strip the thread or roving from the bobbin during the passage of the same along the rolls.

4. A bobbin stripper comprising a rotating stripper roller and means for guiding a bobbin in contact with the periphery of the said roller longitudinally of the latter with the bobbin axis inclined with relation to the rollerv axis, whereby the thread or roving is stripped from the bobbin and the latter fed lengthwise.

5. A bobbin stripper comprising a rotating stripper roller, means adapted to guide a bobbin in contact with the surface of the said roller longitudinally of the latter, with the bobbin axis inclined with relation to the roller axis, and means adapted for similarly guiding a second bobbin in contact with said surface with its, axis inclined in the opposite direction with relation to the roller axis, whereby the thread or ro ing is stripped from each bobbin and the respective bobbins are fed lengthwise, oppositely with relation to each other.

In testimony whereof I aflix my si nature in presence of two witnesses.

RICHARD WALWORTH.

Witnesses:

RICHARD E. WALWORTH, Jr., FRANK J. JENARD, Jr. 

